标题: 小女子求大牛解释 CR逻辑题 OG [打印本页] 作者: GMAT要上700 时间: 2017-7-21 16:34 标题: 小女子求大牛解释 CR逻辑题 OG Exposure to certain chemicals commonly used in elementary schools as cleaners or pesticides causes allergic reactions in some children. Elementary school nurses in Renston report that the proportion of schoolchildren sent to them for treatment of allergic reactions to those chemicals has increased significantly over the past ten years. Therefore, either Renston's schoolchildren have been exposed to greater quantities of the chemicals, or they are more sensitive to them than schoolchildren were ten years ago.
Which of the following is an assumption on which the argument depends?
AThe number of school nurses employed by Renston's elementary schools has not decreased over the past ten years.
BChildren who are allergic to the chemicals are no more likely than other children to have allergies to other substances.
CChildren who have allergic reactions to the chemicals are not more likely to be sent to a school nurse now than they were ten years ago.
DThe chemicals are not commonly used as cleaners or pesticides in houses and apartment buildings in Renston.
EChildren attending elementary school do not make up a larger proportion of Renston's population now than they did ten years ago.
为什么E选项错误了？如果是make up a larger proportion 那么就说明上小学的人多了，所以容易过敏的人多了，多以数量才增加。可以削弱有更多的化学物质和小学生更容易过敏这个结论，为啥不选E嘞？
作者: 轩辕aa 时间: 2017-7-21 21:36
premise: the proportion increase
conclusion: more allergic
assumption must prove that the proportion is true,so the number of children who get allergy must be true
and c can prove it
e is irrelevant 作者: GMAT要上700 时间: 2017-7-22 16:42
感谢分享！ 作者: GMAT要上700 时间: 2017-7-22 16:43
顶楼主顶楼主
说一下E怎么错的就行了，我就是E为什么错不懂
